Latch for dump car doors



June 16; 1931. w. J. ucssczlr 1,809,850

LATCH FOR DUMP CAR DOORS Filed Sept. 8, 1930 2 Sheets-Shoot 2 I [kl/67%;WZZZCHZ 111056612,

- opening of the door.

tion by means of nuts 18, on the outer ends of the pivots as clearlyshown in Figure 2. Mounted on the pivot pin 15 is the latching dog 19,which is preferably constructed in the manner shown in the drawings.From an inspection of the drawings, it will be observed that thelatching dog is provided with an L shaped slot 20, in which the pivotpin 15 is positioned for effecting the pivotal mounting of the latch.Forwardly thereof, at the outer end, the latching dog is provided with ashoulder 21 of a construction adapted to overlie and engage the anglebar 12 of the door.

The latching dog is further provided with a handle receiving socket 22,preferably of the character shown in the drawings whereby the movementthereof may be controlled by the handle 23. On the pivot pin 16, a camshaped locking lug 23, is provided for pivotal movement and of aconstruction adapt-ing it'for engagement of the upper edge of thelatching dog for locking the latter against accidental displacement whenthe door is latched in closed position. This feature is clearly shown inFigure 2. It will be observed, however, that the locking lug is free tobe moved in a clockwise direction to a position of release whereby thelatching dog is free to be swung upwardly as is necessary in manipulatinthe latch for a partial or, complete The locking lug 23, is providedwith an outwardly projecting boss 24, adapted for engagement with thestrap 17, for confining the arcuate movement of the lockinglug to theeffective operating movement.

\Vith the above understanding of the construction of the latch, it willbe observed, as shown in Figure 2, that the latching dog may bepositioned with the upwardly extending portion of the slot in engagementwith the pivot pin 15, whereby the door engaging shoulder is brought toa position for engagement with the anglebar 12, for maintaining the doorin completely closed position. the latching dog so positioned, thelocking lug may then be moved to the full line position in Figure 2,whei-eb the door is securely held closed without lia ility of accidentaldis- 1 placement or release.

Now in the event it is desired to open the door to a partial degree,this may be accomplished by first inserting the handle 23, in the socket22, subsequently removing the locking lug to the dotted line positionshown in Figure 2, so as to permit free movement of the latching dog,after which the handle is lifted in a manner to cause the latching dogto swing around the point of contact with the angle iron of the door asa pivot, and to thereby move the pivot pin 15, out of the After suchmovement is effected, the weight of the lading on the door is free toforce the With door to the partial open position and extend sufiicientto move the latch to bring the pivot pin 15, in engagement with theextreme right hand end of the slot. When the pin reaches the end of theslot, theopening movement of the door is arrested and the door is heldagainst further movement by the engagement of the'shoulder with theangle iron.

If it should be desired to completely open the door, after the door hasalready been partially opened, as shown in Figure 3, it is merelynecessary to move the handle downwardly in a manner to swing the latchbodily in a clock-wise direction around the pivot pin 15, which willresult in adisengagement between the shoulder and angle iron, and a fullrelease of the door.

On the other hand, if it is desired to open the door to the fullreleased position originally from the completely closed position, it ismerely necessary, after the locking lug is removed, to thrust the handledownwardly whereupon the latch will be caused to swing in a clock-wisedirection on the pivot pin 15 in the upwardly extending end of the slotwhereby it will disengage the shoulder 21, from the angle iron of thedoor. When the disengagement isonce effected the weight of the ladingwill cause the door to swing to the free open position.

/ It is of course understood that the handle 23, is readily removablefrom the socket whereby it Wlll not be necessary to maintain theextended awkward part as a permanent attachment of the car. When themanipula 1 various objects specified therefor; It will also be.appreciated that the invention isapplicable to other forms of doorswhere completev closing'and opening, and a partial opening is desired,although it is recognized that the features thereof are particularlyadapted to doors of hopper cars as herein illustrated.

I claim:

1. A latching device of the character described comprising a pivot, alatching dog, having a door engaging portion, and-an angular slottherethrough, said pivot being positioned through said slot for mountingsaid latching dog and forming a pivot therefor in either end of saidangular slot, and means for manipulating said latching dog in eitherclockwiseor counter clockwise directions.

2. A latching device of the character de scribed comprising a pivot, alatching dog,

havin a'door en a in ortion and an an nupwardly extending portion of theslot. g g g g lar slot therethrough, said pivot being posilatching dogand forming a pivot therefor in either end of said angular slot, and ahandle receiving socket on said latching dog.-

- 3. A latching device of the characters described comprising a pivot, alatching dog, having a door engaging portion and an L- shaped slot insliding and pivotal engagement with said pivot, one end of said slotbeing further removed from the door than the other end thereof foroperative positions of said latching dog, one arm of said slotextendingv in the direction substantially tangential to the pivotalmovement of the'door at the point of engagement of the latching dogtherewith. Signed at Chicago Illinois, this 4th day of September, 1930.I r 7 WILLIAM J. HOSCEIT.

